Holding(s) in Company

RNS Number:2398E
Alexon Group PLC
19 October 2004




                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     ALEXON GROUP PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     SCHRODERS PLC

3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18



4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

     SEE BELOW

5)   Number of shares/amount of stock acquired.

      

6)   Percentage of issued Class


7)   Number of shares/amount of stock disposed


8)   Percentage of issued Class


9)   Class of security

      ORD 10P SHARES

10)  Date of transaction



11)  Date company informed

     18.10.04

12)  Total holding following this notification

     13,908,201
               
13)  Total percentage holding of issued class following this notification

      23.048%

14)  Any additional information



15)  Name of contact and telephone number for queries

     R. PIGGOTT
     01582 723131

16)  Name and signature of authorised company official responsible for 
     making this notification

     Date of Notification ......19 OCT 2004..................


Letter to Alexon Group
Dated 15 October 2004

Alexon Group 
10p ORDINARY SHARES ("SHARES")

We write to advise you that we, Schroder Investment Management Limited, have an
interest in 12,083,201 shares which are held in portfolios managed by us on a
discretionary basis for clients under investment management agreements.

Included in this figure are:-

(i)  5,002,204 shares held in (a) unit trust(s) operated and managed by an 
     affiliated company, Schroder Unit Trusts Limited (SUTL), and registered or 
     to be registered in the name of Chase Nominees Limited, and


(ii) 7,080,997 shares neither registered nor to be registered in the name of 
     Schroder Nominees Limited. The registration details are shown on the 
     below schedule.


A subsidiary, Schroder Investment Management North America Limited (SIMNA Ltd),
is managing a portfolio on a similar basis holding a further 1,825,000 shares.
This holding is registered or to be registered in the name of Chase Nominees
Limited.

We believe that we, our subsidiary and affiliated company are therefore
interested in an overall aggregate of 13,908,201 shares, representing some
23.048% of the total number of shares in issue, namely 60,345,767.              
             
This notification is made to you:-

(a) in respect of our interest as investment managers,

(b) on behalf of SUTL and SIMNA Ltd in relation to the interests they are 
    treated as having respectively under the Companies Act 1985 (the Act), and

(c) on behalf of Schroders plc., our holding company, which is treated as having 
    an interest in all of the above shares under the Act by virtue of its 
    ownership of SIMNA Ltd, SUTL and ourselves.


Letter from Schroder Investment Management Ltd


                            10p ORDINARY SHARES

                                  SCHEDULE

REGISTRATION                                             AMOUNT

British Coal Staff Superannuation a/c: P                 2,384,017
Chase Nominees Limited                                     500,000
Chase Manhattan Bank                                     1,591,441
Mineworkers' Pension Scheme a/c: R                       2,583,424
Banque Internationale a Luxembourg S                        22,115

                                                         7,080,997




                      This information is provided by RNS
            The company news service from the London Stock Exchange


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